first post. I'm having a lot of trouble building a trigger. The information on this site regarding building a trigger are extremely vague. I have found this site
http://www.instructables.com/id/Remote- ... ras/#step1
But I don't know how to connect that to a USB.
Also at this SDM site things are rather vague at how to begin.
If there is a button to push that will trigger the cameras I don't see why a computer software program is necessary.
Not all cameras can use that type of switch, so check that before you start building.
Some cameras are built to work with a remote trigger, and some aren't. Many of us use the Canon A480 or similar cameras, and those are really just meant to be simple point-and-shoot cameras, unlike the feature-rich SLRs. So to use a remote trigger with an A480 or similar Canon camera, you have to use the CHDK software to teach the camera to trip the shutter when it receives a pulse from the switch. Expensive cameras that come from the factory ready to use a remote trigger already have that software built in.